Fitted with an inverted "V" blade front and "V" notch rear sights with a ladder graduated to 2,000 yards. The receiver has the imperial mum as well as the Type 35 and Koishikawa arsenal markings, has a lip at the barrel junction for a longer handguard, and is not grooved for a dust cover. The lack of serial number and absence of provisions for a dust cover indicate this is an early model or possibly a prototype. The only other number found is on the bottom of the bayonet lug "2". It is mounted on a two-piece buttstock with a short handguard that does not extend to the receiver, sling swivels, and a flat forged steel buttplate. The right side of the buttstock is stamped "51".